Time of the 20 to the x then get 420
Answer:
y=-2x
Step-by-step explanation:
The function has the table:
x f(x)
-3 -6
-2 -4
-1 -2
0 0
Looking at the table, f(x) deceases by 2 each time. This is a constant rate of change called slope. This is a linear function and its equation can be written using y = mx+b. m = -2. b is the y-intercept for starting point where x = 0. When x=0, the table shows y=0. So b=0.
This means the rule is y = -2x.
True. If the angle is straight it must be 180 degrees, then it's just a line
Answer:
(0, - 3 )
Step-by-step explanation:
- 5x - 3y - 9 = 0 → (1)
4x - 18y - 54 = 0 → (2)
multiplying (1) by - 6 and adding to (2) will eliminate y
30x + 18y + 54 = 0 → (3)
add (2) and (3) term by term to eliminate y
34x + 0 + 0 = 0
34x = 0 ⇒ x = 0
substitute x = 0 into either of the 2 equations and solve for y
substituting into (2)
4(0) - 18y - 54 = 0
- 18y - 54 = 0 ( add 54 to both sides )
- 18y = 54 ( divide both sides by - 18 )
y = - 3
solution is (0, - 3 )
